<!DOCTYPE html>
<html lang="en">
    <head>
        <title></title>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width, initial-scale=1">
    </head>
    <body>
    <script>
        let arr3=['heheda1','heheda2'];
        console.log(arr3.find(function(value,index,arr3){
            return value='heheda1q';
    }));
    </script>
    </body>
</html>